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5
•
The heater must be operated only by properly trained personnel. The manufacturer’s instructions must be followed.
•
The heater must be installed and operated so that people are not exposed to dangers deriving from exhaust gases, from
the hot air flow and in such a way that no fire risks exist.
•
It is forbidden to install the heater in the surroundings of flammable materials, combustible products, or in explosive
atmosphere.
•
When an
indirect-fired
heater connected to a flue pipe is used in a closed room, provide a minimum opening area of 1
ft³ per US gallon capacity at the unit level.
•
When a
direct-fired
heater - or an
indirect-fired
heater
not
connected to a flue pipe - is used in a closed room, provide
a minimum opening area of 3 ft
2
per US gallon capacity at the unit level and a continuous, natural air circulation through
windows and doors.
For the use of the heater the general and special fire safety regulations in force in all fields of applications must be followed.
In any case the following minimum safety clearances from materials or objects in the surroundings of the heater must be
assured:
Side:
2 ft
(610 mm)
Air inlet side:
2 ft
(610 mm)
Top:
5 ft
(1525 mm)
Hot air outlet side:
10 ft
(3050 mm)
Floor:
0 ft
(0 mm)
Flue pipe:
3 ft
(915 mm)
•
Floors and ceilings must be made of fireproof materials in the place where the heater is operated.
•
The air inlet and outlet must never be blocked for any reason.
•
Install the heater on a flat, level floor in a steady position.
•
It is forbidden to connect direct-fired heaters to air ducts.
4.2 Maintenance and checks
•
Depending on the operational conditions, usually every year, the heater should be checked by qualified personnel.
Prior to start-up, the user must check for any evident non-compliance with rules of use, safety and protection.
4.3 Assembly instructions
GRY 15/20 HU (model without wheels)
Before use, assemble the handle as follows:
1
4
5
3
2
1) Unscrew the four screws (1) to
remove the upper cover (2).
2) Align handle (3) to holes on
upper shell (2), fix handle using
screws (4) and nuts (5)
supplied with the unit.
3) Reassemble the upper shell (2).